diff --git a/ChangeLog b/ChangeLog
index 1808b9f..ecbbb78 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -62,6 +62,17 @@
      with an alternative implementation:
      mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
 
+API Changes
+   * Extend RSA interface by multiple functions allowing structure-
+     independent setup and export of RSA contexts. Most notably,
+     mbedtls_rsa_import and mbedtls_rsa_complete are introduced for setting
+     up RSA contexts from partial key material and having them completed to the
+     needs of the implementation automatically. This allows to setup private RSA
+     contexts from keys consisting of N,D,E only, even if P,Q are needed for the
+     purpose or CRT and/or blinding.
+   * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
+     implementations of the RSA interface declared in rsa.h.
+
 New deprecations
    * Deprecate usage of RSA primitives with non-matching key-type
      (e.g., signing with a public key).
@@ -121,6 +132,9 @@
      RSA test suite where the failure of CTR DRBG initialization lead to
      freeing an RSA context and several MPI's without proper initialization
      beforehand.
+   * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
+   * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
+     Found and fixed by Martijn de Milliano.
 
 Changes
    * Extend cert_write example program by options to set the CRT version
@@ -133,17 +147,7 @@
    * Only run AES-192 self-test if AES-192 is available. Fixes #963.
    * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
      undeclared dependency of the RSA module on the ASN.1 module.
-
-API Changes
-   * Extend RSA interface by multiple functions allowing structure-
-     independent setup and export of RSA contexts. Most notably,
-     mbedtls_rsa_import and mbedtls_rsa_complete are introduced for setting
-     up RSA contexts from partial key material and having them completed to the
-     needs of the implementation automatically. This allows to setup private RSA
-     contexts from keys consisting of N,D,E only, even if P,Q are needed for the
-     purpose or CRT and/or blinding.
-   * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
-     implementations of the RSA interface declared in rsa.h.
+   * Add mechanism to provide alternative implementation of the DHM module.
 
 = mbed TLS 2.6.0 branch released 2017-08-10
 
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 4933108..7003989 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -269,6 +269,7 @@
 //#define MBEDTLS_CCM_ALT
 //#define MBEDTLS_CMAC_ALT
 //#define MBEDTLS_DES_ALT
+//#define MBEDTLS_DHM_ALT
 //#define MBEDTLS_GCM_ALT
 //#define MBEDTLS_MD2_ALT
 //#define MBEDTLS_MD4_ALT
diff --git a/include/mbedtls/dhm.h b/include/mbedtls/dhm.h
index d7ab152..f9725ab 100644
--- a/include/mbedtls/dhm.h
+++ b/include/mbedtls/dhm.h
@@ -23,7 +23,13 @@
 #ifndef MBEDTLS_DHM_H
 #define MBEDTLS_DHM_H
 
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
 #include "bignum.h"
+#if !defined(MBEDTLS_DHM_ALT)
 
 /*
  * DHM Error codes
@@ -291,6 +297,18 @@
 #endif /* MBEDTLS_FS_IO */
 #endif /* MBEDTLS_ASN1_PARSE_C */
 
+#ifdef __cplusplus
+}
+#endif
+
+#else /* MBEDTLS_DHM_ALT */
+#include "dhm_alt.h"
+#endif /* MBEDTLS_DHM_ALT */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * \brief          Checkup routine
  *
diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
index 06166d8..b7a5098 100644
--- a/include/mbedtls/x509_crt.h
+++ b/include/mbedtls/x509_crt.h
@@ -373,21 +373,22 @@
 
 #if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
 /**
- * \brief          Check usage of certificate against extentedJeyUsage.
+ * \brief           Check usage of certificate against extendedKeyUsage.
  *
- * \param crt      Leaf certificate used.
- * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or MBEDTLS_OID_CLIENT_AUTH).
+ * \param crt       Leaf certificate used.
+ * \param usage_oid Intended usage (eg MBEDTLS_OID_SERVER_AUTH or
+ *                  MBEDTLS_OID_CLIENT_AUTH).
  * \param usage_len Length of usage_oid (eg given by MBEDTLS_OID_SIZE()).
  *
- * \return         0 if this use of the certificate is allowed,
- *                 MBEDTLS_ERR_X509_BAD_INPUT_DATA if not.
+ * \return          0 if this use of the certificate is allowed,
+ *                  MBEDTLS_ERR_X509_BAD_INPUT_DATA if not.
  *
- * \note           Usually only makes sense on leaf certificates.
+ * \note            Usually only makes sense on leaf certificates.
  */
 int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt,
-                                       const char *usage_oid,
-                                       size_t usage_len );
-#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE) */
+                                               const char *usage_oid,
+                                               size_t usage_len );
+#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
 
 #if defined(MBEDTLS_X509_CRL_PARSE_C)
 /**
diff --git a/library/dhm.c b/library/dhm.c
index 668d5f7..24c3bf8 100644
--- a/library/dhm.c
+++ b/library/dhm.c
@@ -57,6 +57,7 @@
 #define mbedtls_free       free
 #endif
 
+#if !defined(MBEDTLS_DHM_ALT)
 /* Implementation that should never be optimized out by the compiler */
 static void mbedtls_zeroize( void *v, size_t n ) {
     volatile unsigned char *p = v; while( n-- ) *p++ = 0;
@@ -583,6 +584,7 @@
 }
 #endif /* MBEDTLS_FS_IO */
 #endif /* MBEDTLS_ASN1_PARSE_C */
+#endif /* MBEDTLS_DHM_ALT */
 
 #if defined(MBEDTLS_SELF_TEST)
 
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index de3ea80..d8fbe35 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -2042,7 +2042,7 @@
     const mbedtls_ssl_ciphersuite_t *suite = NULL;
     const mbedtls_cipher_info_t *cipher = NULL;
 
-    if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
+    if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
         ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
     {
         *olen = 0;
diff --git a/library/version_features.c b/library/version_features.c
index 172cf12..ede2276 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -105,6 +105,9 @@
 #if defined(MBEDTLS_DES_ALT)
     "MBEDTLS_DES_ALT",
 #endif /* MBEDTLS_DES_ALT */
+#if defined(MBEDTLS_DHM_ALT)
+    "MBEDTLS_DHM_ALT",
+#endif /* MBEDTLS_DHM_ALT */
 #if defined(MBEDTLS_GCM_ALT)
     "MBEDTLS_GCM_ALT",
 #endif /* MBEDTLS_GCM_ALT */
diff --git a/programs/pkey/dh_server.c b/programs/pkey/dh_server.c
index a8ee8fd..4038c36 100644
--- a/programs/pkey/dh_server.c
+++ b/programs/pkey/dh_server.c
@@ -248,6 +248,7 @@
 
     memset( buf, 0, sizeof( buf ) );
 
+    n = dhm.len;
     if( ( ret = mbedtls_net_recv( &client_fd, buf, n ) ) != (int) n )
     {
         mbedtls_printf( " failed\n  ! mbedtls_net_recv returned %d\n\n", ret );
diff --git a/programs/pkey/gen_key.c b/programs/pkey/gen_key.c
index ed6ed30..a7f5c90 100644
--- a/programs/pkey/gen_key.c
+++ b/programs/pkey/gen_key.c
@@ -345,7 +345,7 @@
                                    mbedtls_ctr_drbg_random, &ctr_drbg );
         if( ret != 0 )
         {
-            mbedtls_printf( " failed\n  !  mbedtls_rsa_gen_key returned -0x%04x", -ret );
+            mbedtls_printf( " failed\n  !  mbedtls_ecp_gen_key returned -0x%04x", -ret );
             goto exit;
         }
     }